99 lines
3.2 KiB
C++
99 lines
3.2 KiB
C++
/*************************************************************************/
|
|
/* semaphore_windows.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* http://www.godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
#include "semaphore_windows.h"
|
|
|
|
#if defined(WINDOWS_ENABLED) && !defined(WINRT_ENABLED)
|
|
|
|
#include "os/memory.h"
|
|
|
|
Error SemaphoreWindows::wait() {
|
|
|
|
WaitForSingleObjectEx(semaphore,INFINITE, false);
|
|
return OK;
|
|
}
|
|
Error SemaphoreWindows::post() {
|
|
|
|
ReleaseSemaphore(semaphore,1,NULL);
|
|
return OK;
|
|
}
|
|
int SemaphoreWindows::get() const {
|
|
long previous;
|
|
switch (WaitForSingleObjectEx(semaphore, 0, false)) {
|
|
case WAIT_OBJECT_0: {
|
|
ERR_FAIL_COND_V(!ReleaseSemaphore(semaphore, 1, &previous),-1);
|
|
return previous + 1;
|
|
} break;
|
|
case WAIT_TIMEOUT: {
|
|
return 0;
|
|
} break;
|
|
default: {}
|
|
}
|
|
|
|
ERR_FAIL_V(-1);
|
|
}
|
|
|
|
|
|
Semaphore *SemaphoreWindows::create_semaphore_windows() {
|
|
|
|
return memnew( SemaphoreWindows );
|
|
}
|
|
|
|
void SemaphoreWindows::make_default() {
|
|
|
|
create_func=create_semaphore_windows;
|
|
}
|
|
|
|
SemaphoreWindows::SemaphoreWindows() {
|
|
|
|
#ifdef WINRT_ENABLED
|
|
semaphore=CreateSemaphoreEx(
|
|
NULL,
|
|
0,
|
|
0xFFFFFFF, //wathever
|
|
NULL,
|
|
0,
|
|
SEMAPHORE_ALL_ACCESS);
|
|
#else
|
|
semaphore=CreateSemaphore(
|
|
NULL,
|
|
0,
|
|
0xFFFFFFF, //wathever
|
|
NULL);
|
|
#endif
|
|
}
|
|
|
|
|
|
SemaphoreWindows::~SemaphoreWindows() {
|
|
|
|
CloseHandle(semaphore);
|
|
}
|
|
|
|
|
|
#endif
|